Cybertruck Exoskeleton Engineering Analysis (by Aerospace Structures Engineer) 1st Principles MAXXED

Tesla approaches engineering from first principles, so as (originally) an aerospace structures and manufacturing engineer, Cybertruck's PURE design struck me with awe and appreciation.

In this video I provide an engineering analysis of Cybertruck's exoskeleton, with a focus on less-known aspects. I dive into torsional and lateral rigidity, structural battery, and more.

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Sections:
00:00 Intro
03:36 A Structural Battery Analogy
06:43 Structural. Battery. Pack.
09:13 Keep It Simple, Stupid
11:21 Torsional Rigidity
15:45 Lateral Rigidity
17:01 Cyber Truss
19:41 Dem Buttresses
20:53 - Aerodynamics
21:48 - Structure
23:27 - Magic
24:44 What Next

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Disclosure: Not investment advice, opinions only, use for entertainment purposes only and I am long $TSLA stock

#Cybertruck #EngineeringAnalysis #Exoskeleton #TeslaCybertruck

[TheCardinal]

I love how you explained the structural things by comparing it to what is 'dead weight', like on a body on frame design. Also made me see the significance of making 1 part do more than just 1 thing.

[bjarnesegaard]

Thanks for not repeating what is already known. Your channel is sober and serious, without click bait. I like that.

[dougdanzeisen]

Cybertruck makes me consider a pickup truck for the first time. It really is revolutionary in a good way, using engineering to solve problems that most ignore or just don't deal wtih.

[doublezmtnman]

I too was in love at first sight with this truck and I wasn’t even an EV fan but when I saw this bold concept I was hooked!

[prabhakarniraula]

I did know about the drag coefficient and the truss design, I missed so many things. I had thought the exoskeleton was just to lower weight, I mean it is but I didn’t know the why or the how! Thank you so much for this video 🙏

[ValentinArzola]

The cyber truck is definitely a different type of truck. Most people can't understand what they are looking at because they haven't been exposed to engineering principles. When I saw that triangle I knew there was rigidity improvement right away. It is not conventional but it is definitely revolutionary. It will change truck design in the industry long term.

[jemezname]

We have a small farming operation in the mountains of northern New Mexico. We can't wait for our his/hers cybertrucks. I am so sick of gas and diesel engines. I can't wait for fully electric farm tractors. Imagine how low the center of gravity will be. And if you ever looked at a modern tractor, the complexity is ridiculous. You just can't maintain them yourself. Electric tractors will be so much simpler and you can charge them using your own solar power. To hell with paying for diesel. Our first order was ~40k in line. Then my wife said, hey wait, I want one too. That one is a bit further back in line.

[Pikminiman]

This is the first exoskeleton explanation I've seen which explains deeply enough for me to understand why it's superior. I've struggled until now to understand why exoskeleton is so different than unibody, but now I see it's basically a question of how little dead weight there is. The multi-functionalism present throughout the design makes me confident no other all-electric truck stands a chance at matching Cybertruck's efficiency for similarly capability.
Also, it never occurred to me that you could overcome the side trusses by lowering the suspension. Genius!

[JonGZBOS]

You are one of the best tesla content creators I've seen. You get right to the point but do not miss important details. That is a hard balance to strike. Kudos.

[mmanjin]

I never fully understood the logic behind the Cyber Truss design and now I understand how and why it adds rigidity to the CT no other vehicle can match. Everything about the CT is brilliant engineering that makes all others look so last century and antiquated. So glad I reserved my dual motor in November of 2019 when it was first unveiled. I don't mind waiting since it will be so worth it.

[cjs]

Ok, I'm stunned by the explanation. Thanks! Even harder now to wait for my Cybertruck order to be ready.

[simonreeves]

Only found your channel yesterday, but I’m subbed 👍. I’m in my late 50’s and also from an engineering background. My field electrical and electronic, I went EV in 2019 because to me the physics of an AC induction motor make perfect sense for any vehicle driven by wheels - storing enough electrical energy was the block on this, but Tesla thought outside the box - remember when everyone laughed at the idea of powering a car on laptop batteries? The Cybertruck is awesome, at the reveal, I was shocked; like so many, because it was just too radical on they eyes. Since then I have come to love it for the sheer bravery of its engineering principles. Legacy auto is run by accountants and marketers, Tesla is run by Engineering Science, as long as this continues, the others have no chance! Oh, and don’t get me started on SpaceX! He’s somewhat eccentric, but Elon is a genius for making a clear decision that companies that solve engineering and science problems should be lead by engineering and science thinking, not bean counters and fluffy air-head marketers!

[AdvocteTruth]

I have to admit I fell in love with the CyberTruck at first sight. It reminded me of some of the classic designs of the past. To say it's reminiscent of the Airstream Trailer, P51 Fighter or the Mercedes Gull Wing is for me not an over exaggeration.

This vehicle is a revelation in its simplicity, it's performance and it's complete disregard for the status quo.

You can just imagine Engineers at Tesla when they were told forget everything you know make the best truck possible 🤔🤔🤔Talk about a Boss Moment 😎😎😎

[aaronbounds]

Good point on the buttresses. When people say they won't work because of their height and the interference with bed access from standing outside of the vehicle. Lowering the air suspension all the way is such a simple idea. The simplicity is elegance. The truck has air suspension for a variety of reasons, and lowering itself for easy bed access is just one of them. Nice. 👍

[ImBooX]

Good job. I like the techiness 🙃 of it. I've been in technology fields as a career and hobbies all my life, retired now. You pointed out things I missed and I thought I had it all figured out. Keep up the good work.

[hobblyjig]

This guy deserves 100x the 23k subs he has today!

[johncahill]

As a retired Structural Analyst (Mech Eng) I was hooked from the moment you said “first principles”. Excellent discussion and analysis. The only minor point I would add (and maybe I missed it) was from my own first thought on seeing the Cyber truck...”Truss with Kamm tail”! The Cyber truck design cleverly takes the “truck bed scoop” that kills gas mileage and turns it into an aerodynamic improvement over even trucks with bed covers. And of course “purity” was a good choice of words to describe the design. I like the inherent robustness of having an exoskeleton that distributes uniformly all stress (and ultimately even plastic deformation). For the life of me though this seems impossible to convey to “haters”. Perhaps your video will make headway, hope so!

[taztaztaz]

been driving semitrucks across USA last 10 years… ordered cybertruck when it was announced.. when its delivered i’ll retire and pull my rv around.. i’m done with deisel, oil, fluids, plugs, belts, trannys, anti-gel, etc etc... cant wait for it to get into production but this video is helping me appreciate why it’ll be worth it.. thx!

[josedelacuadra]

Talkin and showing it at the same time give me a better appreciation of the place.

[thomasgaudette]

One thing I don't see mentioned enough. This truck is nearly infinitely rebuild able. So long as the aluminum and stainless are properly isolated, corrosion should be negligible. Municipalities with long term vision towards budget and little regard for style or color will love it.